package com.zkas.munqr.camera;
import android.graphics.Point;
import android.hardware.Camera;
import android.os.Handler;
import android.os.Message;
import android.util.Log;


public class PreviewCallback implements Camera.PreviewCallback {
	private static final String TAG = PreviewCallback.class.getSimpleName();
	
	private CameraConfigurationManager configManager;
	private Handler previewHandler;
	private int previewMessage;

	public PreviewCallback(CameraConfigurationManager configManager) {
		this.configManager = configManager;
	}

	@Override
	public void onPreviewFrame(byte[] data, Camera camera) {
		Point cameraResolution = configManager.getCameraResolution();
		Handler thePreviewHandler = previewHandler;
	    if (cameraResolution != null && thePreviewHandler != null) {
		Message message = thePreviewHandler.obtainMessage(previewMessage, cameraResolution.x,
	          cameraResolution.y, data);
	      message.sendToTarget();
	      previewHandler = null;
	    } 
	    else {
	      Log.d(TAG, "Got preview callback, but no handler or resolution available");
	    }
	}

	public void setHandler(Handler previewHandler, int previewMessage) {
		this.previewHandler = previewHandler;
	    this.previewMessage = previewMessage;
	}

}
